Apple‘s Worldwide Developers Conference (WWDC) is opening tomorrow and the new iRadio service that has been talked about for many months already is supposedly being announced at the event’s keynote presentation. In an attempt to go against the Spotifys and Pandoras of this world, Apple will launch iRadio, their first music streaming service.

Originally the service was supposed to launch in 2012, but Apple apparently had difficulty coming to terms with the world’s biggest record labels. Last week it was announced that the final big label, Sony, had signed onto the service, which means that Apple is finally ready to get the product out there. Similar to Spotify, the service will apparently be free and supported by ads. Also iRadio is supposed to be easier to customize than Pandora and therefore falls kind of in between Pandora and Spotify. It is not clear yet if iRadio will run through iTunes or a separate service and whether or not Apple will offer a premium service without ads.

The WWDC keynote starts tomorrow morning. At that point we can tell you exactly what iRadio is about and what Apple has to offer with this service.

UPDATE (June 10, 2013): Today Apple officially announced its new online music streaming service. It is not called iRadio, but iTunes Radio, which also answers the above raised question of whether or not the service would be running through iTunes.

“You’ll have access to Featured Stations, stations inspired by the music you already listen to, and more than 200 genre-focused stations — including everything from Hard Rock to Doo Wop. Your stations evolve based on the music you play and download. So the more you use iTunes Radio and iTunes, the more iTunes Radio knows what you like to listen to — and the more personalized your experience becomes.”